Benchmark: Add element at index 0 (Splice vs Spread vs unshift)

Tests:

Splice
const testArray = [1, 2, 3, 4, 5, 6, 7]; testArray.splice(0, 0, 10);
Unshift
const testArray = [1, 2, 3, 4, 5, 6, 7]; testArray.unshift(10);
Spread
let testArray = [1, 2, 3, 4, 5, 6, 7]; testArray = [10, ...testArray];

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Splice
Unshift
Spread

Fastest: N/A

Slowest: N/A

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Latest run results:

Run details: (Test run date: 9 months ago)

User agent: Mozilla/5.0 (iPhone; CPU iPhone OS 16_5_1 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/16.5.1 Mobile/15E148 Safari/604.1

Browser/OS: Mobile Safari 16 on iOS 16.5.1

View result in a separate tab

Test name	Executions per second
Splice	12694500.0 Ops/sec
Unshift	16149980.0 Ops/sec
Spread	363280600.0 Ops/sec

Add element at index 0 (Splice vs Spread vs unshift) (version: 0)

Comparing performance of: Splice vs Unshift vs Spread

Created: 9 months ago by: Guest

Jump to the latest result

Splice

Unshift

Spread

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A